Self-hosted Alternatives

Microsoft Outlook

Microsoft Outlook is an email, calendar, contacts, and tasks service with web and app clients, Excha...

Google Tasks

Google Tasks is a task management service for creating and organizing to‑do lists, subtasks, and due...

Skype

Skype is a communication service for voice and video calls, instant messaging, and screen sharing ac...

iGoogle

iGoogle was Google’s personalized homepage/dashboard that let users add gadgets, RSS feeds, and quic...

Mailchimp

Mailchimp is a cloud marketing automation platform for creating, sending, and analyzing email and SM...

Stack Overflow

Stack Overflow is a public question-and-answer platform for software developers to ask and answer te...

Threads

Threads is Meta’s microblogging social network for sharing text posts, photos and links, following a...

Opera Browser

Opera Browser is a cross-platform web browser offering tab management, built-in ad and tracker block...

VMware ESXi

Type-1 bare-metal hypervisor that runs directly on physical servers to create, host and manage virtu...

Zendesk

Zendesk is a cloud customer service platform that manages support across email, chat, messaging, pho...

Google Workspace

Cloud productivity and collaboration suite providing Gmail email hosting, Calendar, Drive file stora...

Google Classroom

Google Classroom is a cloud-based learning management system from Google that lets educators create...

Norton 360 (Norton Security)

Subscription-based consumer cybersecurity service providing antivirus, anti-malware and ransomware p...

Amazon API Gateway

Managed AWS service for creating, publishing, securing, and monitoring REST, HTTP, and WebSocket API...

Apple iCloud Calendar

Apple iCloud Calendar is a cloud calendar service that syncs events, invitations, and shared calenda...

Calendly

Cloud scheduling platform that enables individuals and teams to publish availability, automate meeti...

Strava

Strava is a social fitness platform and mobile/web app that records running, cycling and other worko...

IFTTT

IFTTT is a cloud automation platform that connects apps, services, and smart devices via conditional...

Ticketmaster

Ticketmaster is an online ticketing and event discovery platform for buying and selling tickets to c...

SoundCloud

Online audio streaming and hosting platform for music, podcasts, and other audio. Allows creators to...

Life360

Life360 is a family safety and location-sharing service providing real-time GPS location, location h...

Zoom

Cloud video conferencing and unified communications platform offering online meetings, webinars, scr...

Udemy

Online learning marketplace offering on-demand video courses taught by independent instructors and a...

Google Contacts

Google Contacts is a contact management service that stores, organizes, and syncs personal and share...

Cloudflare Web Application Firewall (WAF)

Cloudflare Web Application Firewall (WAF) is a cloud-based security service that protects websites a...

Cisco OpenDNS (Umbrella)

Cloud-delivered DNS security and secure web gateway that blocks malicious domains, phishing, malware...

Flickr

Flickr is a photo and video hosting and community platform for uploading, organizing, sharing and di...

DigitalOcean

Cloud infrastructure provider offering virtual machines (Droplets), managed Kubernetes, managed data...

Pinterest

Pinterest is a visual discovery and bookmarking platform where users save, organize, and share image...

Arlo

Cloud-based home security platform for Arlo cameras and doorbells providing live video streaming, mo...